Calendar rendering issues

Hello Everyone,

In outlook I have multiple calendars opened at the same time. Sometimes, I have rendering issues as below:

1. Calendar events jump from one month to another,

2. The events orverlap,

3. Scroll the calendar by itself.

4. The cell for the dates are oversized with no dates in order

5. The cells for events get empty even the event exist. 

The solution I have tried so far is upgrading it from 32bit to 64 bit version as I read in one of the Microsoft forums but this didn't work. It still happening and it happens sometimes 4 times a day and sometimes it doens't in all day. Below is the screenshot and attached. Wondering if anyone have come across this issue and have any suggestions how to resolve would be greatly appreciated.